gtp: make echo_interval unsigned

There's no real need to use -1 to indicate echo timer as disabled, since
0 can also be used (it doesn't make sense to have a timer timeout of 0).
This way code is simplified.

Change-Id: I689034887188a53590eddeffda781629694eb5ed
This commit is contained in:
Pau Espin 2019-08-28 16:08:45 +02:00
parent 08378b3ef0
commit 38bfe0ac7d

Diff Content Not Available